lacrimal lake


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Related to lacrimal lake: lacrimal papilla, Lacus lacrimalis

lake

 [lāk]
1. to undergo separation of hemoglobin from erythrocytes.
2. a circumscribed collection of fluid in a hollow or depressed cavity; see also lacuna.
lacrimal lake the triangular space at the medial angle of the eye, where the tears collect. See also lacrimal apparatus.

lac·ri·mal lake

[TA]
the small cisternlike area of the conjunctiva at the medial angle of the eye, in which the tears collect after bathing the anterior surface of the eyeball and the conjunctival sac.
Synonym(s): lacus lacrimalis [TA], lacrimal bay

lacrimal lake

an accumulation of fluid secreted by the lacrimal gland. It is drained by the lacrimal canaliculi.

lac·ri·mal lake

(lak'ri-măl lāk) [TA]
The small cisternlike area of the conjunctiva at the medial angle of the eye, in which the tears collect after bathing the anterior surface of the eyeball and the conjunctival sac.
Synonym(s): lacus lacrimalis [TA] .

lacrimal lake

Accumulation of tears in the angle between the eyelids and the inner canthus prior to draining into the lacrimal puncta. See epiphora; tear meniscus.

lacrimal

pertaining to tears.

lacrimal apparatus
a group of organs concerned with the production and drainage of tears; it is a nutritive and protective device that helps keep the eye moist and free of dust and other irritating particles. Includes lacrimal gland, accessory lacrimal glands, third eyelid glands and the nasolacrimal duct.
Enlarge picture
Nasolacrimal apparatus in the dog.By permission from McCurnin D, Poffenbarger EM, Small Animal Physical Diagnosis and Clinical Procedures, Saunders, 1991
lacrimal canaliculus
the lacrimal duct within the eyelid.
lacrimal caruncle
the rounded, often pigmented swelling at the medial canthus of the eye.
lacrimal cyst
congenital displacement of lacrimal tissue results in subconjunctival cysts.
lacrimal drainage system
the structures concerned with tear collection; includes lacrimal lake, puncta, canaliculi, sac and nasolacrimal duct.
lacrimal duct
there are two of these minute ducts draining tears from the conjunctiva, via the lacrimal puncta, into the lacrimal sac. Called also lacrimal canaliculus.
lacrimal duct irrigator
a 20 gauge, blunt-pointed, straight or curved cannula with a needle attachment so that it can be attached directly to a syringe nozzle.
lacrimal fossa
fossa in the medial wall of the orbital rim which houses the lacrimal sac.
lacrimal gland
contained in a pad of fat in the dorsolateral part of the orbital cavity and drains into the conjunctival sac via many excretory ducts. The secretion is largely watery tears, but in the pig is mucus. May develop adenitis.
lacrimal gland anomalies
failure of patency of the duct, supernumerary opening of the duct and ductal ectasia recorded.
lacrimal gland atrophy
part of the syndrome of keratoconjunctivitis sicca.
imperforate lacrimal puncta
see imperforate punctum.
lacrimal lake
the recess between the lids at the nasal commissure of the eye where the tears collect.
lacrimal pump
contraction of the orbiculari oculi muscle creates pressure on the lacrimal sac which causes tears to drain from the lacrimal lake.
lacrimal punctum
there is one on each eyelid close to the medial canthus. Each drains tears from the conjunctival sac into the lacrimal duct in the same eyelid. The tears then pass to the lacrimal sac and into the nasolacrimal duct. See also punctum.
lacrimal reflex
tear production caused by irritation of the cornea and conjunctiva.
lacrimal sac
the distended proximal end of the nasolacrimal duct into which the lacrimal ducts empty.
lacrimal sinus
an excavation of the lacrimal bone which communicates with the maxillary sinus in some species.
lacrimal system
see lacrimal apparatus (above).

lake

1. to undergo separation of hemoglobin from erythrocytes.
2. a lacuna; a circumscribed collection of fluid in a hollow or depressed cavity.

lacrimal lake
see lacrimal lake.